연습문제 3-2

#include <iostream>

#include <string>

#include <vector>

#include <algorithm>

using namespace std;

int main()

{

    vector<int> arr;

    typedef vector<int>::size_type vec_sz;

    int num;

    cout<<"insert number : ";

    while(cin>>num)

        arr.push_back(num);

    vec_sz size = arr.size();

    if(size == 0 ) {

         cout<<"You mus enter your grade."<<endl;

    }

    sort(arr.begin(), arr.end());

    for(int i=size-1; i>size-5; i--)

        cout<<"arr = "<<arr[i]<<endl;

   

    return 0;

}

 

그나마 쉽네..